I have the CP-e exhaust and I love it because I am currently running without a tune and it still crackles and burbles on decel. If the Thermal exhaust came out at the same time I think I would go for that because it is (or has the ability to be) a true 3" exhaust for future proofing and it is cheaper. The biggest reason I would get Thermal is that I hear there is NO DRONE! The CP-e exhaust drones quite a bit in my case and for a few others that have posted about it, but I have learned to live with it.
Same here!
I am almost afraid to install ANY 'pops and crackles' tune with this exhaust, since I fear they will be ridiculously loud, and draw EVERY LEO within' 15 miles to my car! (Besides having the neighbors run me out of town!
)
Mine even pops occasionally between hard shifts at higher revs as well as during decel/throttle closure from high revs.
This is the
resonated CP-E Nexus system, with a FACTORY stock down pipe.
I do not notice quite the 'drone' (
whatever that IS exactly??) that others do with this system, as it DOES have a 'branched Helmholtz device near the tail pipe.
But yes, there is
some what I would call 'boominess' at
certain rev ranges, at certain times, but NOT constantly like others complain about (and which
supposedly, the Thermal system does NOT have).
I also most likely would have bought the Thermal from Ron at Whoosh as well (easier to change out tail pipes/tips, and use the big Ultimate Racing turn down tip I have on it now,
without that big Helmholtz chamber right there above it) had it been out when I got the Nexus system, but still love the sound of this one enough to NOT actually sell it to get anything else.